Seeking Guidance on Honoring a Difficult Parent...

Assalamu alaikum, everyone. I need some advice and just to get this off my chest. Lately, my relationship with my mother has become really hard for me to bear. Just today, she seemed upset about something, and when I greeted her with 'Assalamu alaikum,' she didn't reply. I thought something was wrong, so I went to check on her. In her room, I accidentally knocked over a perfume bottle, and it broke. She got so angry that she hit me, which caused a nosebleed. I left to clean up while she kept yelling, calling me useless and saying she regrets having me. It hurt so much. For the past few years, she's even started bringing up my past struggles with my mental health to criticize me. I'm trying my best – I help around the house, I give her most of my earnings – but nothing seems to make her happy. I know our mothers hold a very special and respected place in Islam, and I feel guilty for even having these feelings of resentment. How do I deal with this islamically? I truly don't want to disrespect her or hold any grudges, but I feel I'm reaching my limit, especially when she says things like whether I enter Jannah is up to her or that she'll make bad dua for me. Any advice would be appreciated. Jazakum Allahu khayran.